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Dosimass Flow Meter and Endress+Hauser Proline Promass Dosing Plant Sensors: A Practical Replacement Guide
Quick Answer: Silver Automation Instruments supplies Coriolis mass flow meters that match many Endress+Hauser Dosimass and Proline Promass dosing plant sensor footprints. The range covers DN15 to DN80, 4-20 mA HART output, pulse output, RS485 Modbus, PT100 temperature measurement, and ATEX Zone 1 options. Send pipe size, flow range in kg/h, pressure in bar, temperature in °C, and fluid name to get a quotation.
Why dosing plants ask about Dosimass flow meters
Dosing plants do not care about volume only. They care about mass delivered into a batch. A Coriolis mass flow meter gives direct mass flow, density, and temperature from one device.
Most engineers search for Dosimass flow meter when an existing Endress+Hauser unit fails or when a new skid needs a compact sensor. The Dosimass line is common on chemical injection, coagulant dosing, antiscalant dosing, flavor injection, and catalyst addition.
Here is the thing. Many of these skids run low flow from 0.5 kg/h to 80 kg/h. DN15 and DN25 Coriolis sensors fit this range well. Silver Automation Instruments builds a direct replacement range that keeps the same process connection, signal, and power requirement.
Direct replacement scope for Proline Promass dosing plant sensors
The Endress+Hauser Proline Promass range appears in food, chemical, water treatment, and oil and gas dosing. Silver Instruments offers replacement Coriolis mass flow meters in DN15, DN25, DN40, DN50, and DN80. Wetted parts are 316L stainless steel by default. Hastelloy C22 is an option for acids and caustic solutions.
Accuracy is ±0.2 percent of rate for liquids. Repeatability is ±0.05 percent of rate. That fits most dosing plant sensors, including low flow injection of additives and catalysts.
Process connections include Tri-Clamp, DIN 11851, ANSI flanges, and EN 1092-1 flanges. Standard pressure ratings are PN16, PN40, Class 150, and Class 300. Temperature range is -50 to 150 °C for standard models. High temperature versions up to 200 °C are available for some sizes.
Signals and communication for dosing skids
A dosing skid normally uses 4-20 mA for flow rate and a pulse output for batch totalization. Our transmitter includes 4-20 mA HART, pulse output, and RS485 Modbus RTU as standard. PT100 temperature output is available. This matches many Proline Promass installations without a full PLC program rewrite.
Because we have seen wiring mistakes on site, we recommend sending a photo of the existing nameplate or the electrical drawing. The model code helps us confirm signal type, process connection, and hazardous area certificate before quotation. For hazardous areas, ATEX Zone 1 and Zone 2 options are available with Ex d or Ex ia protection.
Low flow performance and site experience
Coriolis meters measure mass directly. That helps when fluid density changes with temperature or concentration. A caustic soda dosing line may vary in concentration from 20 to 50 percent. The mass flow output remains stable because the meter does not rely on volume conversion.
We supplied DN15 Coriolis mass flow meters for antiscalant dosing in a desalination plant in Oman. The flow range was 1 to 30 kg/h. The customer used a pulse output to drive the dosing pump controller. Zero drift over 12 months stayed below 0.01 percent of full scale.
Last year a paint maker in Vietnam asked us to replace twelve Endress+Hauser Proline Promass F sensors on solven
What to check before ordering a replacement
First, confirm the pipe size. DN15 and DN25 are the most common for Dosimass flow meter replacements. Second, check the process connection type. Tri-Clamp is common in food and beverage, while flange connections are common in chemical plants. Third, note the required output. If your PLC reads 4-20 mA HART, specify that. If you need pulse for batching, we include it as standard.
Also check the fluid. Abrasive slurries, high viscosity liquids, and low conductivity fluids all work with Coriolis measurement. Conductivity values from 5 µS/cm to 5000 µS/cm do not affect the mass flow reading. That matters in demineralized water dosing where electromagnetic flow meters fail.
Most engineers skip this part. The installation orientation matters. Mount the meter vertically with upward flow for liquid dosing. That prevents air bubbles from collecting in the measuring tubes. Use a filter upstream if the fluid contains particles larger than 0.2 mm.
Price and lead time factors
Price depends on size, wetted material, pressure rating, hazardous area approval, and transmitter type. A standard DN15 Coriolis mass flow meter in 316L with Tri-Clamp connections and 4-20 mA HART is normally more cost effective than a fully customized unit. DN25 and DN40 units cost more because the flow tube size increases and the body becomes heavier.
Standard lead time is 5 to 10 working days for DN15 and DN25. Flanged versions and ATEX certificates add 3 to 5 working days. Hastelloy C22 or high temperature options may require 15 working days. We ship to Southeast Asia, Oceania, Latin America, Africa, and the Middle East by air or sea.
If you need a dosing plant sensor for a new skid or a replacement unit, send us your pressure in bar, temperature in °C, pipe size DN, flow range in kg/h, and fluid name. We will return a model code and price.
Contact Silver Automation Instruments
Website: flow-meter.com.au
Tel: +86-25-68650347
WhatsApp: +86-25-52155837
WeChat: +86 15365082610
FAQ
Can you replace an Endress+Hauser Dosimass flow meter in a dosing pump skid?
Yes. Most replacement projects need the same pipe size, process connection, and signal output. Send a photo of the existing nameplate or model code. We will match the footprint.
What accuracy do these meters offer for low flow dosing?
Standard accuracy is ±0.2 percent of rate for liquids. Repeatability is ±0.05 percent of rate. For very low flow below 1 kg/h, we recommend a DN15 meter and a zero check after installation.
Which outputs are available?
4-20 mA HART, pulse output, and RS485 Modbus RTU are standard. PT100 temperature measurement is included in the transmitter data.
What is the lead time for DIN 11851 or Tri-Clamp connections?
Standard DN15 and DN25 meters ship in 5 to 10 working days. DIN 11851 and Tri-Clamp connections do not add extra lead time if the material is 316L stainless steel.
How do I request a price for a Proline Promass replacement?
Send your process fluid, pipe size, process connection, pressure, temperature, flow range, and signal type. Contact Silver Automation Instruments through the numbers above.